Kayne Richard A Sent A Letter To The Board Of Directors Of Athira Pharma, Inc.

Dear Fellow Shareholders:

I began investing in Athira over six years ago based on my strong conviction that ATH-1017 has extraordinary potential with a solid scientific foundation, and that former President and Chief Executive Officer, Dr. Leen Kawas, was the right person to develop this product. Today, I am one of the Company’s largest shareholders. Whi…